Benton, J. (2009, Aug. 27). Micropayments and the power of free. Nieman Journalism Lab. Retrieved September 26, 2017, from http://www.niemanlab.org/2009/08/micropayments-and-the-power-of-free/

Chicago

Benton, Joshua. "Micropayments and the power of free." Nieman Journalism Lab. Last modified August 27, 2009. Accessed September 26, 2017. http://www.niemanlab.org/2009/08/micropayments-and-the-power-of-free/.